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Cheap flights from Sydney to Siem Reap from $510

SYD — SAI
8 Dec — 15 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to Siem Reap

Enter your travel dates to find the best prices.

Cheapest flights from Sydney to Siem Reap

Wed 11/1112:05 -
1 stop13h 40m
Fri 13/1122:25 -
1 stop31h 35m
Deal found 5/11$1,106
Sat 19/1211:50 -
1 stop25h 50m
Sat 26/1221:30 -
1 stop32h 20m
Deal found 4/11$2,216
Mon 7/1212:15 -
1 stop25h 40m
Mon 11/110:45 -
1 stop27h 10m
Deal found 6/11$2,377
Thu 24/1209:50 -
1 stop33h 00m
Fri 8/110:00 -
2 stops18h 55m
Deal found 5/11$2,400

Find flight deals from Sydney to Siem Reap

Round-trip from

$885

One-way from

$510

Popular in

January

Cheapest in

October

Average price

$1,048
Vietnam Airlines
  • Vietnam Airlines
  • 28/2-9/3
  • 2 total stops
  • 45h 00m total
  • Sydney to Siem Reap
Search Deals
6/2-31/12
  • 6/2-31/12
  • 1 total stop
  • 29h 05m total
  • Sydney to Siem Reap
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($805 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($137 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Sydney to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sat 6/2

20:05-16:05

2 stops24h 00m

Siem Reap–Angkor Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$560

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 28/2

08:05-16:00

1 stop11h 55m

Siem Reap–Angkor Intl

Tue 9/3

19:05-10:00

2 stops34h 55m

$983

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Fri 5/3

08:05-16:00

1 stop11h 55m

Siem Reap–Angkor Intl

Fri 12/3

10:45-17:55

1 stop27h 10m

$996

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Fri 5/3

12:05-18:05

2 stops34h 00m

Siem Reap–Angkor Intl

Fri 12/3

19:05-10:00

2 stops58h 55m

$1,034

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Fri 5/3

15:15-14:20

2 stops27h 05m

Siem Reap–Angkor Intl

Fri 12/3

21:30-09:50

1 stop32h 20m

$1,287

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 29/11

11:50-16:10

3 stops32h 20m

Siem Reap–Angkor Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$1,294

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 28/2

11:50-16:10

3 stops32h 20m

Siem Reap–Angkor Intl

Tue 9/3

10:20-13:15

2 stops22h 55m

$1,728

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Mon 30/11

21:55-17:25

3 stops47h 30m

Siem Reap–Angkor Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$1,808

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 10/1

19:10-09:55

1 stop18h 45m

Siem Reap–Angkor Intl

Sat 16/1

16:50-17:55

1 stop21h 05m

$2,015

SydneySiem Reap

SYD Sydney Kingsford Smith - SAI Siem Reap–Angkor Intl

SYDSAI

Sydney Kingsford Smith

Sun 10/1

08:45-09:15

2 stops28h 30m

Siem Reap–Angkor Intl

Sat 16/1

09:55-09:35

2 stops19h 40m

$2,037

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from Sydney to Siem Reap

Have a flexible travel schedule? Discover the best time to fly to Siem Reap from Sydney with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Sydney to Siem Reap

What is the cheapest month to book a flight from Sydney to Region of Siem Reap?

Currently, October is the cheapest month in which you can book a flight from Sydney to Region of Siem Reap (average of $894). Flying from Sydney to Region of Siem Reap in January is currently the most expensive (average of $2,347). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Sydney to Region of Siem Reap?

Airfare is below average for this route at the moment.
Sydney to Region of Siem Reap flights typically cost between $952 and $1,153 in February.
The cheapest return price found within the last 5 days was $885 on Vietnam Airlines (28 Feb–9 Mar).

Reviews of airlines servicing Siem Reap

Get a feel of what it's like to fly with Singapore Airlines and Vietnam Airlines from Sydney to Siem Reap by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,632 reviews
Check prices

Comfort

8.0

Overall

8.2

Food

7.8

Entertainment

8.1

Crew

8.6

Boarding

8.3

Reviews

1 / 20
10.0
Excellent

Rob,Sept 2026

JFK - SIN

The gate agent was rude. Very disappointing. The cabin crew was amazing. Every thing with them was great once we boarded the plane.
Singapore Airlines
8.2
Very Good
1,632 reviews
Singapore Airlines
8.2
Very Good
1,632 reviews
Check prices

Comfort

8.0

Overall

8.2

Food

7.8

Entertainment

8.1

Crew

8.6

Boarding

8.3

Reviews

1 / 20
10.0
Excellent

Rob,Sept 2026

JFK - SIN

The gate agent was rude. Very disappointing. The cabin crew was amazing. Every thing with them was great once we boarded the plane.
Vietnam Airlines
7.7
Good
297 reviews
Singapore Airlines
8.2
Very Good
1,632 reviews
Check prices

Comfort

8.0

Overall

8.2

Food

7.8

Entertainment

8.1

Crew

8.6

Boarding

8.3

Reviews

1 / 20
10.0
Excellent

Rob,Sept 2026

JFK - SIN

The gate agent was rude. Very disappointing. The cabin crew was amazing. Every thing with them was great once we boarded the plane.

Related info for your journey

  • What airport do you fly from for flights from Sydney to Siem Reap?

    For a flight from Sydney to Siem Reap, you will be flying from Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre of the city.

  • How long is the flight from Sydney to Region of Siem Reap?

    Airlines like Singapore Airlines, VietJet Air, and Vietnam Airlines fly from Sydney to Region of Siem Reap in about 11h 55m. The time it takes to get you to your destination can typically vary by up to 22h 05m. There are 7229 km between Sydney and Region of Siem Reap. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Sydney to Siem Reap that include hotel bookings?

    Yes. In addition to deals on Sydney to Siem Reap flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sydney to Siem Reap?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Siem Reap.

  • Can I find deals for business class flights from Sydney to Siem Reap?

    Yes. Cheapflights offers flight deals from Sydney to Siem Reap by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sydney to Region of Siem Reap?

    Currently, October is the cheapest month in which you can book a flight from Sydney to Region of Siem Reap (average of $894). Flying from Sydney to Region of Siem Reap in January is currently the most expensive (average of $2,347). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Sydney to Siem Reap

Sydney to Siem Reap flights
Coolangatta to Siem Reap flights

Top 2 airlines flying from Sydney to Siem Reap

AirlineCheapestAverageFlexibilityOn-time
Vietnam AirlinesCheapest$841Average$1,130FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Singapore AirlinesCheapest$867Average$1,326FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

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How does Cheapflights help users find flights from Sydney to Siem Reap?

When you search for this flight from Sydney to Siem Reap, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Siem Reap?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Siem Reap from Sydney.

Can Cheapflights find flights from Sydney to Siem Reap with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sydney to Siem Reap, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Sydney to Siem Reap become cheaper?

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